Lubricating-gland



(No Model.)

' J. N. GHAMBERLIN.

LUBRIGATING GLAND.

No. 429,717. Patented June 10, 1890.

UNITED STATES PATENT OFFICE.

JAMES N. CHAMBERLIN, OF MARIETTA, OHIO.

LUBRlCATlNG-G LAN D.

SPECIFICATION forming part of Letters Patent No. 429,717, dated June 10, 1890.

Application filed January 28, 1890. $erial No. 338,403. (No model.)

of Ohio, have invented certain new and use-' ful Improvements in a Lubricating-Gland; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

This invention relates to means for lubricat-in g the piston-rods of engines while passing in and out through the stuffing-box; and it has for its object to diminish the friction caused by the packing, and also to prolong the latters lasting capacity. The same means serve also as a cylinder-lubricator, inasmuch as some of the lubricant taken inside by the piston-rod stays inside on the latters outward stroke and comes in contact with the interior of the cylinder. These means consist, essentially, of a gland having its head or flanged part thickened and hollow, so as to form a chamber or boxing which surrounds the piston-rod and is adapted to hold the lubricant, thus combining with an ordinary gland additional advantages without impairing its usefulness in the discharge of its primary function, nor necessitating alterations in the general construction of the engine.

The specific construction of the device is illustrated in the accompanying drawings, in which Figure 1 shows in a section one end of a cylinder with stuffing-box and gland. Fig. 2 is a front view of the gland, piston-rod in section. Fig. 3 is a side View of the parts shown in section in Fig. 1. Fig. 4 is a section on line 4 4 of Fig. 1. Fig. 5 is a rear View of the gland, piston sectioned on line 6 6 of Fig. 1. Fig. 6 is a front view of the stufling-box, piston-rod sectioned on line 6 6 of Fig. 1; and Fig. 7 shows in a partly sectional view, on line 7 7 of Fig. 4, myimprovement, used in connection with a different kind of stuffing-box.

9 is a steam-cylinder, and 10 one of its cylinder-heads.

11 is the piston-rod, and 12 a stuffing-box of well-known pattern.

13 is the gland, adapted to be held against the stuffing-box for the purpose of keeping the packing in. This packing is assumed to consist in this case of rubber packing 14 and of cotton rope 15, all of which is, however, not material. The flanged part of gland 13, which is provided with holes 10 for the reception of bolts 17, holding it in position, is thickened and hollow, forming a chamber 18 or boxing, which surrounds the piston. This boxing has an opening 19 in its top for the introduction of the lubricant, and a drainage or drip cock 20 below to be enabled to empty the chamber, if desirable, and to drain the condensed water out.

The lubricant is not applied directly to the piston-rod, but through the intervention of a fibrous material 21, such as cotton waste, for instance. This waste is loosely packed around the rod through the opening in the top of boxing 18, which latter, being in proper position and snugly inclosing the piston-rod, permits such packing to be done conveniently and quickly. The lubricant, generally oil, is then introduced through the same opening, and by the capillary attraction of the fibrous material, packed around the in and out passing rod, keeps it constantly lubricated.

22 is a soft-metal bushing, the obj ect of which is to prevent scraping or other injury to the piston-rod should the gland from some cause get out of center and touch the rod, a case which happens often in steamboatengines, where the foundation is not rigid. The gland and its mode of fastening, as illustrated in Figs. 1, 2, and 6, is aform commonly used on steamboats. The form shown in Fig. 7 is frequently used on stationary engines.

The manner of securing the inner ends of the bolts 17 is not material, nor does the use of stud-bolts or cap-screws interfere with the use of my improved gland.

I know it is not new to lubricate rods or shafts by having them move or revolve inthe lubricant, nor is it new to apply lubricantholding chambers adjacent to such revolving the shaft secured to the flange, all the said IO or reciprocating machine elements, and thereparts being cast in one piece, substantially as fore do not claim such. described.

I claim- In testimony whereof I aflix my signature in 5 A combined smiling-box gland and lubripresence of two Witnesses.

\Yitnessesr CARL SPENGEL, JNo. MARSHALL SMEDE.

round the shaft and hold the packing of the stufling-box in place, a flange at right: angles I eating device, consisting of a collar to sur- I JAMES N. CHAMBERLIN. thereto, and a hollow boxing for surrounding I 

